Q: What are the prime factors of the number 29,045,248?

 A: 2, 17, 47, 71

Why are those the prime factors of the number 29,045,248?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 29,045,248

29,045,248
Factor Arrows
214,522,624
Factor Arrows
27,261,312
Factor Arrows
23,630,656
Factor Arrows
21,815,328
Factor Arrows
2907,664
Factor Arrows
2453,832
Factor Arrows
2226,916
Factor Arrows
2113,458
Factor Arrows
256,729
Factor Arrows
173,337
Factor Arrows
4771

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 17, 47, 71

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 17 x 47 x 71 = 29,045,248

This can also be written as 29 x 171 x 471 x 711 = 29,045,248

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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